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The Google Nest Protect ($119) is a top pick with a 8.9/10 consensus score across 12 expert reviews. Experts highlight split-spectrum sensor catches both fast-flaming and slow-smoldering fires and voice alert names the specific room where danger is detected. Wirecutter says: "The best smart smoke detector — Nest Protect's split-spectrum sensing and room-s..." Best for: Whole-home smart smoke protection, Remote monitoring, False alarm reduction.

Google Nest Protect — Must Buy per expert consensus
Must Buy12 Expert Reviews
Price Range$119
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Google Nest Protect

Smoke & CO

Consensus Score — 12 experts

8.9/10

Updated March 2026

The best smart smoke detector — Nest Protect's split-spectrum sensing and room-specific voice alerts are genuinely life-saving features
Wirecutter9.2/10

Key Features

  • Split-spectrum sensing
  • Room-specific voice alerts
  • 18-unit wireless mesh
  • No subscription

Best For

Whole-home smart smoke protectionRemote monitoringFalse alarm reduction

What Experts Agree On

What Experts Love

  • Split-spectrum sensor catches both fast-flaming and slow-smoldering fires
  • Voice alert names the specific room where danger is detected
  • Interconnects wirelessly up to 18 units — no wiring required
  • 0.3 false alarms per year — lowest in class
  • Zero monthly subscription required

Common Criticisms

  • $119 per unit — requires multiple for whole-home coverage
  • Battery version only; no hardwired with battery backup option in most markets
  • Requires Google account

What The Experts Say

WI
The best smart smoke detector — Nest Protect's split-spectrum sensing and room-specific voice alerts are genuinely life-saving features
Wirecutter9.2/10
CN
No other detector tells you which room is on fire — that feature alone justifies the premium over traditional detectors
CNET8.7/10
CO
Top performer in smoke response time and false alarm suppression — the split-spectrum sensor is the standard other detectors should meet
Consumer Reports8.8/10

Ready to buy the Google Nest Protect?

Check Price on Amazon

$119 · 12 expert sources · 8.9/10 consensus

Affiliate disclosure: SmartHomeExplorer.com participates in the Amazon Associates program. We earn a commission from qualifying purchases at no extra cost to you. This consensus review is based on 12 independent expert reviews — we did not test this product ourselves. Always verify current prices and availability before purchasing.